Beubek dotsoe



(No Model.)

R. D. HALL.-

PUMP.

No. 301,71. rammed July s, 1,884.

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UNITED STATES PATENT rrrcn.

REUBEN DOTSON HALL, OF NEW HAMPTON, MISSOURI. I y

SPECIFICATION formingrpax't of Letters Patent No. 301,717, dated July 8, 1884.

Application led January 10, 1984. (No model.)

To all whom t may concern:

Be it known that I, REUBEN D. HALL, a citizen of the United States, and a resident of N ew Hampton, in the county of Harrison and State of Missouri, have invented certain new and useful Improvements in Force-Pumps; and I do hereby declare that the following is afull, clear, and exact description of the in- Vention, which will enable others skilled in the art to which it appertains to make and use the same, `reference being had to the accompanying drawings,` which form a part of this y specification, and in whichy Figure l is a vertical sectional view of my improved doubleacting pump. Fig. 2 is a similar view of the lower part of the same on an enlarged scale,v and Fig. 3 is a perspective View of the double piston.

Similar letters of reference indicate corresponding parts in all the iigures.

My invention has relation to doubleacting force-pun1ps; and it consists in therimproved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In' the accompanying drawings, the letter A indicates the piston of the pump, which is provided with a laterally-projecting lug,4 B, at its middle, to which lug the lower end of the piston-rod C is attached, and the ends of the piston are 'recessed for the reception yof packing-rings D, and 't and. reciprocate within two cylinders, E, secured with their opposite ends in the ends of a perforated cylinder, F, having a longitudinal slot,- G, through which the lng upon the piston projects, and in which it slides. The ends of the piston are hollow, and form annular valve-seats H, upon which .two valves, I, play, opening outward, and conhave apertures'K, forming communications betweenl the interior of the perforated cylinder and the hollow portions of the piston. The lower end of the lower cylinder, E, is provided with a collar, L, which is bolted to a collar, M, upon an elbow-joint, N, which is provided. upon its under side with a number of feet, O, which serve to raise the elbow from the bottom of the well or vessel in which the pump is placed, and the other upwardly-bent end of the elbowj oint `forms a seat, l?, for an a iange, X, upon the lower end of an upright pipe, Y, into the lower end of which the upper end of the upright pipe T opens, while its upper end passes through the crosspiece or cover Z at the top of the well, where it forms 65 the reduced discharge-pipe A', through which the water is discharged. A narrow pipe, B', passes down parallel with the outlet-pipe,and the piston-rod slides in the said pipe, which serves to guide and strengthen it, and the up- 7o per end of thepiston-rod is hinged to one end of thev pump-lever G', which is pivoted at the top of the well.

It will now be seen that as the piston is re operatingnieans the water or iiuid, in which the vend of the pump is immersed, will flow through the perforated cylinder, lift the valve at the end of the piston facing from the direction of its motion, thus allowing the water 8o vto pass into the cylinder, from whence it will be forced out by the returning piston raising the outletfvalve, the upper cylinder discharg ing when the lower cylinder is being filled, and vice versa. 8

Having thus described my invention,I claim and desire to secure by- Letters atentl. The combination of the piston having the hollow ends open at the sides and formed into valve-seats at the ends, and having the aXi- 9o ally-perforated solid, central portion, with the valves fitting upon' the seats in the ends of the piston, and connected by the rod sliding in the perforation of the solid central portion of thepiston, as and for the purpose shown and set forth.

2. The combination of the piston having the laterally-projecting lug, the piston-rod secured at its lower end to the said lug, and the for the purpose shownland set forth. i

In testimony that I claim the foregoing as my ownI have hereunto aiiixed my signature in presence of two witnesses.

REUBEN DOTSON HALL. lvVitnesses:

JOHN W. Grurs, J oHN W. SMITH.

valve, v, and a aange, w, which is boned to 6o ciprocated by means of the piston-rod and its 7 5- guide-pipe surrounding the piston-rodas and 

